Home / 45,661.38-68,464.72-18,975.18

Finding the Fourth Proportional to 45,661.38, 68,464.72 and 18,975.18

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Solution

The fourth proportional to 45,661.38, 68,464.72 and 18,975.18 is: 28,451.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,661.38 : 68,464.72 = 18,975.18 : x
  2. Step 2: Convert to fraction form
    45,661.38/68,464.72 = 18,975.18/x
  3. Step 3: Cross multiply
    45,661.38x = 68,464.72 × 18,975.18
  4. Step 4: Simplify right side
    45,661.38x = 1,299,130,385.65
  5. Step 5: Solve for x
    x = 1,299,130,385.65/45,661.38
  6. Step 6: Final answer
    x = 28,451.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.